# Calc: Count missing fields

Number of missing fields in a form or questionaire

### Properties

- Type: [Extension](https://docs.tsnocode.com/books/field-type-reference/chapter/extension)
- Groupable: No
- Show in lists: No
- Searchable: No

## <span class="mw-headline" id="bkmrk-user-interface-1">User interface</span>

<span class="mw-headline">Field in show mode</span>

<span class="mw-headline">\[INSERT IMAGE\]</span>

Due to its nature this field has no special editing mode.

## <span class="mw-headline" id="bkmrk-configuration-1">Configuration</span>

[![image.png](https://docs.tsnocode.com/uploads/images/gallery/2025-07/scaled-1680-/GTr8k3l8yX3t3UqC-image.png)](https://docs.tsnocode.com/uploads/images/gallery/2025-07/GTr8k3l8yX3t3UqC-image.png)

<span class="mw-headline">\[Description of configs\]</span>

## <span class="mw-headline" id="bkmrk-developer-info-1">Developer info</span>

- FeltTypeID: 2082
- SQL datatype: INT(11)
- Class name: FieldMissingValues